Etienne mares



(No Model.)

E. MARES.

ELECTRIC METER.

No. 440,431. Patented Nov. 11., 1890.

Z :ya j E By UM/m1,@

A TTOHNE YS UNITED STATES PATENT OFFICE.

ETIENNE MARES, oF PARIS, FEANcE.

ELECTRIC METER.

SPECIFICATION forming part of Letters Patent No. 440,431, dated November11, 1890.

Application tiled February 26, 1890. Serial No. 341,794. (No model.)

To all whom, t may concern:

Beit known that I, ETIENNE iWIAREscf Paris, France, have invented a newand Improved Meter, of which the following is a full,clear, and exactdescription.

The object of the invention is to provide a new and improved meter,whichis simple and durable in construction, very eiective in operation,and adapted for all purposes for which meters are generally employed,especially, however, for measuring electricity and other iuids andsubstances.

`The invention consists ot a balanced lever on which is mounted totravel a carriage adapted to engage a registering wheel or cylinder.

The invention also consists of certain parts and details andcombinations of the same, as

will be hereinafter fully described, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is asectional side elevation of the improvement as arrangedvfor measuring electricity, on the line fr of Fig. 2. Fig. 2 is a planview of the same. Fig. 3 is a side elevation of the improvement. Fig.I.tis a side elevation of the same in a different position. Fig. 5 is aside elevation of the improvement in a modified form. Fig. 6 is asimilar view of the same in another position. Fig. 7 is an enlarged endview of the locking mechanism for thebalancedlever,which latter is shownin section. Fig. 8 is a front viewof the same in an unlocked position.Fig. 9 is a similar view of the same in alocked position. Fig. l0 is anenlarged transverse section of the balancinglever and the carriage. Fig.1l represents detail side and end views of the locking-arm forthe'locking mechanism, and Fig. 12 is an enlarged side elevation of partof the carriage.

The improved meter is provided with a balancing-lever A, fulcrumed at aknife-edge B, and on which is mounted to travel acarriage C, adapted toengage and disengage a wheel D, connected with the registering apparatusE, as shown in Figs. 1 and 2. The carriage C is provided with a platformC', mounted on wheels C2, traveling in a groove A',formed in the top ofthe balancing-lever A, (see Fig. 10,) and from the said platform extendobliquely downward, the rods C3, supporting a weight C4, preferably acasing filled with shot.

The weight C4 is arranged below the knifeedge B of the lever A, so as tobring the center of gravity in a vertical line which passes thrmlgh thekuifeedg@ of the lever. Nhen the lever A is in its normal horizontalposition, as shown in Fig. 3, and the carriage travels on the saine,then the wheel D is turned by contact with the platform C of the rollingcarriage; but when the lever A oscillates in one direction, as shown inFig. 4, the carriage disconnects from the wheel and the latter stopsturning. Thus the essential point of the invention is a carriage mountedto travel on an oscillating lever and adapted to engage or disengage thecontrolling-wheel of a registering apparatus, which may be of anyapproved construction.

In Figs. 5 and G, for instance, is illustrated a carriage C, which isprovided on its platform C with a stylus or marker F, adapted to mark onthe periphery of the cylinder D', which is mounted to turn. The linestraced along the cylinder are parallel to the axis of the same, and varyin length according to the length of time the stylus F is in contactwith the said cylinder D,which latter in this case is substituted forthe wheel D, previously mentioned As illustrated in Figs. l and 2, theabove-mentioned main feature of the invention is applied to an electricmeter', presently to be more fully described.

The improved electric meter is mounted on a suitable base G, supportingthe posts G', in which are mounted the knife-edges B of the lever A. Ontop of the lever A travels the carriage C, in a manner previouslydescribed, and adapted to be moved with its plat-form C in contact withthe wheel D of the recording apparatus E. Directly below the front endof the lever A is arranged a Vatt meter H, comprising the coarse-wirebobbins lil and H3, between which is arranged the fine-wire bobb'in Hiin the usual manner, as plainly shown in Finn l. The iine-wire or centerbobbin H2 is engaged by a Wooden block I, held on a wooden rod I',extending upward through IOO the central opening of the bobbins H2 and Hto be hooked onto a collar l2, held adj ustably on the front end of thebalancing-lever A, and adapted to be secured in place by a setscrew 13.On the base G are arranged the binding-screws J J', J2, and J3, of whichthe binding-screws J and J connect the apparatus with the source ofelectricity, which may be a dynamo, accumulator, dac. The binding-screwsJ2 and J3 connect the apparatus with the lamps or other means for usingthe electricity. The sh unt-wire H4 leads from the fine-Wire bobbin H2to the binding-post J, and another wire H5leads from the said fine- Wirebobbin H2 to the binding-screw J', as is plainly shown in Fig. 1.

On the base G'is held in a suitable casing K a clock-work or other meansfor-imparting a rotary motion to a crank-disk K', connected by a pitmanK2 with a lever L, fulcrumed at its lower end on a shaft L', mounted toturn in suitable bearings erected on the base G. The upper end of thelever L is provided with a slot L2, engaged by a pin N', held on theouter end of a rod N, supported on grooved rollers N2, mounted onsuitable posts erected on the base G. On the under side of the rod Nisheld a downwardly-extending projection N3, from which extends sidewise apin N4, adapted to engage alternately the pins C5 and C3, secured on theunder side of the platform C' of the carriage C. On the shaft L is alsofulcrumed a lever O,V adapted to engage with its upper end a pin P',held on a lever P, fulcrum'ed on the balancing-lever A. On the lower endof the said lever P is arranged a pin P2, adapted to be engaged by ahook Q, held vertically adjustable on a bracket R, secured on the baseG. The oscillating movement of the balancing-lever A is limited by thestop-screws S and S', arranged on the sides `of the knife-edge B, asisplainly shown in Fig. l.

The operation is as follows: The current of electricity passes from itssource to the binding-screw J, then to the binding-screw J2, passing atthe same time through the coarsewire bobbins H' and H3 of the Watt meterH, then re-enters the apparatus by the binding-screw J3 after havingpassed through the lamps or other means of using the electric current.The current then returns to the dynamo or other source of electricity bythe binding-screw J The wires H4 and H5 are used-one before the entranceof the current into the apparatus and the other when the current haspassed through the apparatus. N ow, supposing that at first no currentpasses through the apparatus, then the carriage C is moved so that thecenter of gravity of the balancing-lever A is displaced and the lever isoscillated immediately upon its knife-edge B, so that the platform C' ofthe carriage disconnects from the wheel D, which consequently does notlturn and the meter is not operated. N ow,if the current passes throughthe apparatus the bobbin H2 is attracted by the bobbin H3 and repulsedby the bobbin H. The fine-wire bobbin H2 thus presses on the block I,thereby swinging the balancing-lever A downward at its front end in thedirection of the arrow a', so that the front end of the, balancing-leverrests on the set-screw S. The carriage C now travels on thebalancing-lever A until it reaches such a position that its weight G4will be sufficiently distant from the knife-edge B to balance the forceapplied to the end of the balancing-lever A through the bobbin H2. Asthe leverA oscillates, the pin P2 of the lever P hooks onto the hook Q,thus locking the lever A in position and preventing its rising on thereturn-stroke of the carriage. The pin P2 is disconnected from the hookQ when the lever P is operated on by the lever O, which engages the pinP' and swings with the lever L, imparting motion to the carriage C bymeans of the rod N, supporting the pin N4, acting alternately on thepins C5 and C6 on the platform C' of the carriage.

lt is understood that the distance traveled by a point on thecircumference ofthe wheel D is equal to the distance traveled by theplatform of the carriage C at the moment of the balancing-lever A isupset. Thus it will be seen that the wheel D is actuated at regularintervals, and the result can be read on the dial of the registeringapparatus E to quickly calculate the electric power for a given time.

It is understood that the electro-dynamometer develops a force expressedby E. I. and integrated periodically at equal intervals of time. Thelength of the platform of the device is proportional to that force E.-I., so that the time during which the platform operates thecounting-wheel is indicated and can be read on the dial; but thisreading also gives the expression E. I. T.-that is, the electric powerfor a given time.

It is understood that the mechanism in the box K for imparting motion tothe levers L and O and to the carriage Cmay be of any approvedconstruction-an electric-clock movement, spring movement, or otherdevice.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patentl. In an electric meter, the combination, withthe balancing-lever mounted to oscillate and an electro-magnetic devicefor actuating said lever, of g a carriage on the lever, mechanism forreciprocating the carriage, and a registering device in the path of thecarriage and separate and independent of the carriage and lever,substantially as set forth.

2. ln an electric meter, the combination, with the balancing-levermounted to oscillate and an electro-magnetic device for actuating saidlever, of a carriage on the said lever, clock mechanism forreciprocating the carriage, and a register separate and independ= ent ofthe carriage and lever and having a wheel or cylinder the lower side ofwhich is in the path of the upper side of the carriage, substantially asset forth.

3. In an electric meter, the combination, with the balancing-levermounted to oscillate, the coarse-wire bobbins, intermediate-spacedfine-Wire bobbin, and a connection between the front end of the leverand the ne-wire bobbin, of a carriage on the lever, a recipro eating rodmounted in bearings above the lever and connected with the carriage, anda register actuated from the carriage, substantially as set forth.

4. The combination, with the balancing-lever and an electro-magneticdevice for depressing t-he front end of the lever, a catch for engagingthe lever at the opposite side of its fulcrum, and means for releasingthe catch, of a carriage mounted on the lever and mechanism forreciprocating the carriage and ren leasing the catch, substantially asset forth.

5. The combination, with the balancing-lecrum of said lever,mechanismfor reciprocat- 35 ing the carriage, and a relativelystationary registeractuated by said carriage, substantially as set forth.

ETIENNE MARES. Witnesses:

J ULLIAN TENELL, A. ARNAUD.

